Ubitx construction. Remi F1MQJ has m odified the manufacturer’s v4.
Ubitx construction. Using a 100 PPR encoder with the uBITx Allison KB1GMX gives details on how to wire up the commonly available 100prr-6 encoder. The board is mounted on a piece of plywood and usea 1/8-inch clear plastic as front and rear panels for controls and connectors. Some people will want to guarantee that their computer is fully isolated from their rig and will make or buy interfaces (Signalink, EasyDigi, etc. He used SMD Yellow shielded inductors 331nH x 2 + 51pf to ground. Aluminium cases are generally light-weight and more robust (but not necessarily more robust than a good plastic case). This is an effort to help builders with their construction Feb 26, 2019 · Ashhar Farhar reported on 6 February 2019 that HF Signals has pushed the uBITx v5 into production. com aims to provide complete info and updates about the uBITx, sharing information with all ubitx builders. IMD may not be as pressing an issue as harmonics and spurs, but the µBITx seems to generate more IMD than it should. ” Aluminium cases are the next preferred option in the “weight” and “ease of construction” stakes. At a minimum, the following items are required to make the transceiver functional: the uBITx kitset; a 12v regulated power supply capable of delivering at least 4 amps; an enclosure (it is possible to use the plastic shipping case though!) knobs for the encoder and volume control Feb 3, 2018 · The front panel break-off from the board simplifies construction and makes the form factor as small as possible. He made RX tests on DCF77 on 16. in. Jan 6, 2020 · Barbaros WB2CBA has modified his stock µBITx v6 kit to use the Nextion 2. Assembly of the µBitx transceiver typically takes between 8 and 20 hours. Apr 9, 2020 · Since there have been a few posts on people having occasional troubles assembling the V6 "Full Kit" and for some reason they don't seem to be able to find the instructions (plain sight) on HF Signals website, I took the time to write up a fairly comprehensive construction manual for the V6 and did this while actually assembling the last one I bought. Mar 30, 2019 · Collection of construction guides Steve N3SB has alerted constructors to a small collection of documents, photos, test results, and a calibration procedure that his Carroll County Amateur Radio Club (Maryland USA) has been putting together at: Jul 5, 2019 · Ashhar Farhan VU2ESE, designer of the uBITx recommends replacing R253 (a resistor) with a 0. Apr 17, 2018 · Allison KB1GMX says “The ubitx sans driver and finals will put out roughly the right power for most modern transverters without the problem of too much power. Apr 16, 2018 · Connecting your µBITx can be done in a number of ways. io group. They elected not to replace the original RV-1, so the “XMIT POWER” knob on the front panel is still not wired up. Jul 6, 2019 · Olivier has connected his uBitx to a homebrew converter (using an NE612) (see schematic attached) and PA0RDT’s mini whip just to see what he could find on the VLF bands. etc. The problem John built his uBitx around a manpack configuration with an external side mounted heatsink, no connection at the back, and room for an autotuner. However, he didn’t want to build a filter that would be strictly tied to the uBITX. So he built a standalone Low Pass Filter box that works as an add on filter for the uBITX as well as becoming a general purpose piece of Ham equipment he can Jun 16, 2018 · A file has been uploaded to the Files area of the BITX20@groups. First off, the directions for installing this board are brief, but they are easily followed and the boards are easy to install. Remi F1MQJ has m odified the manufacturer’s v4. Jul 17, 2018 · Jon Titus KZ1G shows off his breadboard construction technique, which he uses while his rig is under development. . If you are wanting to extensively modify your µBitx, you will need to choose an enclosure that leaves plenty of room for modifications to be built alongside the main board or, alternatively, sufficiently tall to be stacked on top of the main board. Sep 8, 2018 · A new website ubitx. com. A new website ubitx. 4Khz (Norway) with good results so I think it will be nice on 17. ). Mar 30, 2019 · Collection of construction guides Steve N3SB has alerted constructors to a small collection of documents, photos, test results, and a calibration procedure that his Carroll County Amateur Radio Club (Maryland USA) has been putting together at: Bought my ubitx kit last year. The RadI2Cino (Pronounced Rad ee too CEE no) was designed to replace the “Radino” card for the Micro BITX (uBITX) transceiver to allow the use of the built in I2C data bus. Gordon Gibby KX4Z 1. John VK2ETA raised a request for help on the group list on 24 January after spending over a week trying to figure out an issue he had with his uBITx. Aug 3, 2019 · Pop VU2POP shared pictures of his homemade ubitx cabinets. We look forward to seeing Martin’s report on how the board performs in practice. Mar 27, 2018 · A more fulsome article with construction details (using surface mount components) is posted on nd6t. These filters are RX ONLY and should not be placed in the TX path. He has been working on a new SSB kit (in fact all modes, AM and FM as well as digital modes) that will be released later this year. Hans, G0UPL (www. installed new filter and coil mods for harmonics and spurs. Needs the custom firmware to direct switch between bands with a PA bandplan limitation (also has FULL option) and Step size up and down. Raj VU2ZAP has confirmed that surface mount components can be used in the LPF after the 45MHz filter. Sep 2, 2018 · At this QTH there’s a couple of mag loops under construction (Teensy controlled) and a bench power supply project … Categories Harmonics, spurs and IMD , uBitx News Post navigation Aug 3, 2018 · The µBITx case from Sunil Lakhani VU3SUA is popular with constructors based on its value for money. uBITX, it’s on the back. Use the technique of soldering 1 pin near the middle of the header and then while heating this pin, quickly position Jan 30, 2018 · ubitx. Polarity Protection – ALL MODELS We install a Fuse and cross-diode right from the beginning so you won’tFRY your wonderful radio! 2. This simple circuit led to a discussion on the BITX20 IO Group list, started by Jerry KE7ER, about the BAP64Q pin diode attenuator. This would be a good kit to learn about toroid construction for those that have not had a chance as yet to try winding your own. 8″ TFT Nextion display. Richie KM4TLR has Eagle layout files for the RF sections of the UbitX if you are building one from scratch. The majority of the time is spent on selection of the enclosure, knobs and power supply, and in creating holes for insertion of components on the front and back panels of the enclosure. You can also replace the 1K resistor at R250 with a 10 K resistor to increase the sidetone volume. The first uBITx has appeared with a 2. He took a modular approach, so there are several circuit boards that you could make a UbitX or a single The AGC is apparently very effective at calming those 9+20dB signals that on the uBITx will damage your hearing! The design is for the BITx40, but can be readily adapted for the uBITx – probably not at the antenna (because it is best to avoid diodes at the front end of the uBITx), but at the 45MHz IF stage. all bands ssb,cw. He is using ADE-1 mixers on both sides, which are easily and cheaply obtained on eBay, and adjustable gain VFO/BFO buffers (a la N6QW LBS design). If you have enough room between the installed card and the front panel of your uBITX, then put it on the back. Dual VFOs, RIT, CW speed, sideband selection. net promoting ubitx info”. The design involves a common cabinet for both the standard manufacturer supplied 2 line 1602 LCD display as well as the 2. Use 2N7000 or BS170 MOSFETs and a 2N3904 or 2N2222 type NPN transistor. Apr 1, 2018 · The front panel break-off from the board simplifies construction and makes the form factor as small as possible. great receive on it was listening to w1aw on 5 ft of solder temporarily hooked up to A step by step instructions for how to wire your Ubitx board. are all accessible from a single menu. Breadboard uBITx Jon Titus KZ1G shows off his breadboard construction technique, which he uses while his rig is under development. 10 Copyright © W0EB and N5IB March 9, 2018, all rights reserved. W0EB/N5IB RadI2Cino Construction Manual Rev 1. The crystal filter is on a daughter card for easy swapping in and out . easy build and installed all new relays axiom. Press the tuning control to access all the features. The lower voltage diodes are basic PN junctions and would not work as a RF switch. 2 for Ubitx V5 found here: Oct 11, 2019 · The construction manual, pictures of the board and ordering/availability information can be found on Jim’s website. com) produces a range of QRP kits, including his well regarded QRP CW rig, the QCX. If you need about ¼ inch more room, solder it on the front of the board. These have a nice vernier style dial and cover 100 pulses per 360 degree rotation. Aug 3, 2018 · ubitx. With the lid open, the box is 6 inches deep,9 3/4 wide and 4 1/2inches high. No doubt it will have a different slant and fill a distinct niche in the uBITx ecosystem. Jul 9, 2018 · Using a PCF8574AP I2C IO Extender and hooked it up to the all-ready existing I2C bus on the Raduino for more direct menu buttons. net> Description: Latest NON I2C release from W0EB/W2CTX – ubitx_V2_00R contains totally restructured menu system – SPLIT is working – slight rewiring of CW Key Jack is required but this VASTLY improves the CW keying – full instructions are Hans, G0UPL (www. Reference Posted on July 21, 2018 July 22, 2018 Mar 19, 2019 · Jim W0EB, TSW Project Coordinator, bought two of these kits for his 2 uBITX Version 5 radios. Choosing a appropriate chassis. qrp-labs. Sunil says that “it will be similar to other group websites like ubitx. Jul 14, 2019 · This would be a good kit to learn about toroid construction for those that have not had a chance as yet to try winding your own. Aug 10, 2019 · The construction is the same for the series except the 1n4007. Dec 30, 2017 · Ubitx Construction Step 1. The display provides full touch control along with physical optional buttons. Operating. 732 subscribers. Tom WB6B wanted to build a new filter for use with the uBITX (to overcome harmonics on his output). net> </w0eb@cox. The receiver is a good match as well. 8″ TFT LCD display. Apr 16, 2018 · If you adverse to surface mount construction, there is little problem in building it with leaded components. Nov 2, 2018 · The uBITX board received for the build allowed the team to find a “sweet spot” setting on the original RV-1 that provided acceptable drive across the whole 3 -30 MHz range of frequencies. radio works as described. He reports that it is working well! For firmware, he used KD8CEC Ian Lee’s CEC Firmware Version 1. 94. 2Khz from Sweden. Feb 8, 2018 · ubitx. Items required to assemble your uBITx. David’s website will have detailed specifications and instructions for both the Bitx40 and uBitx radios on it shortly. Try to keep wiring short and compact in the RF attenuator portion but the rest is very non-critical. just received the new ubitx v6. Oct 29, 2019 · There is a bit of the uBITX design incorporated in his bottom up construction. NeoTheNomad. It is likely we will see a few changes to the board before it becomes available to purchase! Wishbone_aaa spotted in his workshop a Harbor Freight plastic ammo box that looks like it will do the job. File: ubitx_V2_00R. 2 touch screen display. The hardware is from Joe VE1BWV and the software from VU2SPF. installed nextion 3. The original uBITx design was published by Ashhar Farhan in March 2017. 11K views 6 years ago. This could be very useful for those wanting to stick with the HF Signals latest firmware, while making it easier to view or update initialisation settings, such as calibration of frequency or setting the BFO injection point, in the original firmware. BASIC uBITX CONSTRUCTION IMPROVEMENTS NOT ALL OF THESE NINE BUILDING STEPS APPLY TO ALL VERSIONS OF THE MICROBITX --- DO THE ONES THAT APPLY TO YOUR MODEL. It is likely we will see a few changes to the board before it becomes available to purchase! Aug 3, 2019 · Pop VU2POP shared pictures of his homemade ubitx cabinets. However, many find it difficult to find wiring guides for this case. more. Subscribed. A number of people have built a uBITx up from scratch. Warren WA8TOD previously raised concerns about the level of intermodulation being generated in the µBITx TX signal path. The 1n4007 however has an extra intrinsic (undoped) layer forming the P-I-N junction. com has been opened by Sunil VU3SUA for providing information on building the µBITx into his universal case, sold on amateurradiokits. Information available on the website is currently limited, but addition information will be added on the µBITx over time. Jan 24, 2018 · This website should make it much easier to identify potential mods for your own µBitx, and get the information you need to do the construction! It is not intended to replace the group culture, but to make it easier to reference mods suggested by group members. 1uf capacitor to get the sidetone to work properly if you are encountering issues with it (mostly on a v5 uBITx). Removing spurs. Dec 26, 2018 · There is a bit of the uBITX design incorporated in his bottom up construction. It is a joy to operate. Need information about the previous version of uBITX? Click here for V3 | Click here for V4. 8” TFT display. zip Uploaded By: Jim Sheldon <w0eb@cox. 3 original firmware (published on may 23 2018) to include communication with KD8CEC memory manager. An initial 100 boards had arrived so they may run out quickly (reminding us of the v3 board shortages of 2018). Dec 1, 2018 · There is a bit of the uBITX design incorporated in his bottom up construction. Apr 9, 2020 · Since there have been a few posts on people having occasional troubles assembling the V6 "Full Kit" and for some reason they don't seem to be able to find the instructions (plain sight) on HF Signals website, I took the time to write up a fairly comprehensive construction manual for the V6 and did this while actually assembling the last one I Ubitx Construction How To Intro. UPDATE. bhkb tuzmqs icqsly qhcvvy sqoww temec awbh trcr zlm hhfnz